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Cheap flights from Houston to London Heathrow Airport from £255

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 18/3. Fares are subject to change and may not be available on all flights or dates of travel.
HOU — LHR
19 Dec — 26 Dec1
1 adult
1 adult, Economy, 0 bags

Cheapflights Tip: The best prices from Houston to London Heathrow are usually found in February or October, booked 74 days in advance, depart on a Wednesday or Thursday and return on a Wednesday

Cheap flight deals from Houston to Heathrow

Discover tips and strategies to find the most affordable flight options for your journey from Houston (HO1) to Heathrow (LHR). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 19 November 2025.

Round-trip from

£455

One-way from

£255

Popular in

June

Cheapest in

February

Average price

£587
Scandinavian Airlines
  • Scandinavian Airlines
  • 20/1-28/1
  • 4 total stops
  • 42h 51m total
  • Houston to London
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WestJet
  • WestJet
  • 18/3
  • 1 total stop
  • 37h 30m total
  • Houston to London
Search Deals
Highest demand for flights based on searches. 18% potential increase in price (£111 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease (£19 potential savings vs. average return price).
Search Deals
Average for round-trip flights in November 2025
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Find flight deals from Houston to Heathrow

Enter your travel dates to find the best prices.

Cheapest flights from Houston to Heathrow
Explore the most affordable flight options available from Houston to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 19 November 2025.

Wed 31/1218:38IAH - LHR
1 stop11h 02mDelta
Fri 9/110:10LHR - IAH
2 stops19h 46mDelta
Deal found 16/11£456
Mon 8/1212:35IAH - LHR
1 stop13h 15mVirgin Atlantic
Wed 24/1213:00LHR - IAH
2 stops16h 51mVirgin Atlantic
Deal found 17/11£457
Mon 8/1210:39HOU - LHR
2 stops14h 11mVirgin Atlantic
Thu 25/1210:45LHR - HOU
1 stop14h 29mVirgin Atlantic
Deal found 16/11£457
Tue 25/1112:30IAH - LHR
1 stop12h 40mAir Canada
Tue 2/1213:45LHR - IAH
2 stops37h 54mAir Canada
Deal found 17/11£459
Mon 8/1215:50IAH - LHR
Nonstop9h 00mBritish Airways
Wed 17/1210:05LHR - IAH
1 stop17h 23mBritish Airways
Deal found 16/11£463
Sat 22/1110:14IAH - LHR
2 stops28h 21mAir Canada
Wed 3/1209:00LHR - IAH
2 stops18h 39mAir Canada
Deal found 17/11£464
Tue 18/1112:30IAH - LHR
2 stops16h 00mDelta
Fri 28/1106:30LHR - IAH
2 stops19h 40mDelta
Deal found 17/11£465
Sun 30/1109:28IAH - LHR
1 stop17h 07mBritish Airways
Tue 23/1214:10LHR - IAH
1 stop15h 20mBritish Airways
Deal found 17/11£468
Tue 2/1215:50IAH - LHR
Nonstop9h 00mBritish Airways
Sun 7/1215:25LHR - IAH
Nonstop10h 35mBritish Airways
Deal found 17/11£470
Wed 19/1110:40HOU - LHR
2 stops16h 20mDelta
Thu 27/1108:55LHR - HOU
2 stops20h 12mDelta
Deal found 17/11£472
Tue 2/1218:28IAH - LHR
1 stop11h 47mBritish Airways
Mon 8/1215:25LHR - IAH
Nonstop10h 35mBritish Airways
Deal found 17/11£474
Wed 3/1215:10IAH - LHR
2 stops16h 40mDelta
Mon 8/1217:35LHR - IAH
1 stop26h 20mDelta
Deal found 18/11£474

Cheapflights Fare Finder

 
Customise your flight search to find flights from Houston to Heathrow that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 19 November 2025.
Use the filters below to find and compare flights from Houston to London Heathrow Airport that are best for you.

Fly from

Houston

Fly to

Heathrow

Route

Depart

Return

Price

HoustonLondon

HOU - LHR

HOULHR

Houston Hobby

Wed 4/3

10:50-09:00

1 stop16h 10m

London Heathrow

Tue 10/3

06:30-21:46

2 stops20h 16m

£455

HoustonLondon

HOU - LHR

HOULHR

Houston Hobby

Tue 3/2

11:09-07:50

1 stop14h 41m

London Heathrow

Thu 12/2

08:55-16:30

1 stop13h 35m

£458

HoustonLondon

HOU - LHR

HOULHR

Houston Hobby

Wed 4/2

17:04-11:40

1 stop12h 36m

London Heathrow

Tue 10/2

12:30-22:33

1 stop16h 03m

£458

HoustonLondon

HOU - LHR

HOULHR

Houston Hobby

Wed 11/2

11:09-06:25

1 stop13h 16m

London Heathrow

Mon 23/2

17:35-16:30

2 stops28h 55m

£464

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

Wed 7/1

16:20-07:30

Nonstop9h 10m

London Heathrow

Wed 14/1

07:30-18:15

1 stop16h 45m

£477

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

Wed 11/2

16:06-21:35

3 stops23h 29m

London Heathrow

Mon 23/2

10:20-23:39

2 stops19h 19m

£481

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

Tue 20/1

16:06-21:35

3 stops23h 29m

London Heathrow

Wed 28/1

06:40-23:37

2 stops22h 57m

£481

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

Mon 9/2

09:54-16:25

3 stops24h 31m

London Heathrow

Mon 16/2

10:20-23:39

2 stops19h 19m

£481

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

Wed 25/3

15:40-07:50

1 stop11h 10m

London Heathrow

Wed 15/4

06:30-13:15

1 stop12h 45m

£483

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

Mon 8/12

16:20-07:30

Nonstop9h 10m

London Heathrow

Wed 24/12

12:05-16:50

Nonstop10h 45m

£486

Flights are sorted by cheapest return flights first.

Deals found on 16/11

Showing 1-10 of 44 results
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Best time to book a flight from Houston to Heathrow

Have a flexible travel schedule? Discover the best time to fly to Heathrow from Houston with our price prediction graph.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Houston to London Heathrow Airport

How far ahead should I book a flight from Houston to London Heathrow Airport?

Use this chart to determine the optimal time to book a return flight from Houston to Heathrow. Price data was last updated on 14 November 2025.

Booking 74 days in advance of your planned departure date is, on average, the best time to get cheap flights from Houston to London Heathrow Airport. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

What is the cheapest month to book a flight from Houston to London Heathrow Airport?

Currently, October is the cheapest month in which you can book a flight from Houston to London Heathrow Airport (average of £383). Flying from Houston to London Heathrow Airport in June is currently the most expensive (average of £655). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from HOU to LHR?

Find hourly flight availability from Houston to Heathrow. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 19 November 2025.

It’s typically best to fly out from Houston to London Heathrow Airport in the morning. Doing so could potentially save you 4% on the flight price compared to flying in the evening, which is usually more expensive.

How much does it cost for a return flight from Houston to London Heathrow Airport?

How often are flights from Houston to London delayed?

About 27% of weekly flights between Houston and London have experienced delays in the past year, with the average delay time being 145 minutes.

What is the most punctual flight time for Houston to London flights?

Historically, flights departing in the early afternoon are less likely to be delayed, whereas flights leaving in the evening tend to experience delays more often.

What day of the week experiences the fewest flight delays on this route?

Tuesday tends to have the lowest number of delays on this route, whereas Friday has historically faced a higher average of delays compared to other days of the week.

Which airline has the best punctuality record on Houston to London flights?

Over the past year, British Airways have had the lowest number of delays on this route, with just 19% of flights being delayed.

Reviews of airlines servicing Heathrow

Get insights into the airlines that provide service to Heathrow. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Heathrow. Reviews last updated 19 November 2025.
Read through reviews of airlines operating flights from Houston to London Heathrow Airport, such as United Airlines, Iberia, andLufthansa. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
9,020 reviews
Check prices

Comfort

7.3

Entertainment

7.1

Overall

7.4

Boarding

7.7

Crew

8.1

Food

6.6

Reviews

1 / 20
2.0
Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000
United Airlines
7.4
Good
9,020 reviews
United Airlines
7.4
Good
9,020 reviews
Check prices

Comfort

7.3

Entertainment

7.1

Overall

7.4

Boarding

7.7

Crew

8.1

Food

6.6

Reviews

1 / 20
2.0
Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000
Iberia
7.0
Good
3,026 reviews
United Airlines
7.4
Good
9,020 reviews
Check prices

Comfort

7.3

Entertainment

7.1

Overall

7.4

Boarding

7.7

Crew

8.1

Food

6.6

Reviews

1 / 20
2.0
Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000
Lufthansa
6.8
Okay
7,576 reviews
United Airlines
7.4
Good
9,020 reviews
Check prices

Comfort

7.3

Entertainment

7.1

Overall

7.4

Boarding

7.7

Crew

8.1

Food

6.6

Reviews

1 / 20
2.0
Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000
British Airways
6.7
Okay
7,532 reviews
United Airlines
7.4
Good
9,020 reviews
Check prices

Comfort

7.3

Entertainment

7.1

Overall

7.4

Boarding

7.7

Crew

8.1

Food

6.6

Reviews

1 / 20
2.0
Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000

Related info for your journey

Find useful and relevant information for your journey from Houston to Heathrow. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Houston to London Heathrow Airport?

    Departing from Houston to London Heathrow Airport will take you 9h 10m. Airlines will cover a distance of 4820 mi. This flight may include one or multiple stops.

  • What are the cheapest airlines flying from Houston to London Heathrow Airport round-trip?

    Cheapflights users have booked flights from Houston to London Heathrow Airport round-trip from £356. Other airlines that can offer you cheap pricing are United Airlines, from £397, and British Airways, from £425. These flights start at 44% lower than the current average price 3 months from now.

  • What are the cheapest airlines to fly from Houston to London Heathrow Airport one-way?

    The cheapet airlines for a one-way flight from Houston to London Heathrow Airport are JetBlue (£265), Iberia (£276), and Air Canada (£287).

  • Can I find deals for flights from Houston to Heathrow that include hotel bookings?

    Yes. In addition to deals on Houston to Heathrow flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Houston to Heathrow?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Houston to Heathrow.

  • Can I find deals for business class flights from Houston to Heathrow?

    Yes. Cheapflights offers flight deals from Houston to Heathrow by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Houston to London Heathrow Airport?

    Currently, October is the cheapest month in which you can book a flight from Houston to London Heathrow Airport (average of £383). Flying from Houston to London Heathrow Airport in June is currently the most expensive (average of £655). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Travelling to a place near London Heathrow Airport?

Book flights to London Heathrow Airport if you plan to visit one of these locations
Milton Keynes
Croydon
Slough
Gatwick
Hounslow
Northampton
Luton
Ilford
Wembley
Deal
Hayes
Colchester
Watford
Winchester
Swindon
Crawley
Brentford
Romford
Chichester
Ipswich

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Houston to Heathrow

See prices for flight routes from nearby airports that may be better suited for you.
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Top 4 airlines flying from Houston to Heathrow

Discover the top 4 airlines that operate flights from Houston to Heathrow. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 19 November 2025.
AirlineCheapestAverageFlexibilityOn-time
LufthansaCheapest£356Average£521FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
United AirlinesCheapest£397Average£653FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
British AirwaysCheapest£425Average£693FlexibilityNo cancel feeOn-time70%
Search British Airways flights
IberiaCheapest£436Average£618FlexibilityNo cancel feeOn-time77%
Search Iberia flights

Fly with Cheapflights

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How does Cheapflights help users find flights from Houston to Heathrow?

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Millions of users choose and trust Cheapflights to book the best flight deals from Houston to Heathrow for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

Can Cheapflights find flights from Houston to Heathrow with no change fees?

Need flexible booking options for your flight to Heathrow from Houston? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

Can Cheapflights notify me if prices for flights from Houston to Heathrow become cheaper?

Not ready to book yet? You can track prices for flights from Houston to Heathrow on Cheapflights with our Price Alert feature and get notified when better prices are available.

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